NFL requests Gregg Williams audio, Sean Pamphilon says

Filmmaker Sean Pamphilon told Yahoo! Sports on Sunday that the NFL has asked for his audio recording of former New Orleans Saints defensive coordinator Gregg Williams urging his players to target opponents before a playoff game last season.

Harrison: Coach Power Rankings

How do NFL coaches stack up against each other?
Elliot Harrison ranks them all, 1-32, including new
Saints boss Joe Vitt.
More ...

Pamphilon told the website that the league called him "four times on Friday" asking for the audio. He said he expects the tapes to be subpoenaed.

The NFL indefinitely suspended Williams, now the St. Louis Rams' defensive coordinator, for operating a bounty program that rewarded Saints players for big hits on opponents. Saints coach Sean Payton was suspended for the entire 2012 season and will be replaced on an interim basis by assistant Joe Vitt, who must serve his own six-game ban once the season starts.

Pamphilon previously said he was within his rights to release audio of a pregame speech by Williams encouraging his players to injure opponents, claiming he hadn't violated his agreement with former Saints special-teams stalwart Steve Gleason. Pamphilon said his agreement with Gleason, the subject of his upcoming documentary, doesn't prohibit either party from releasing audio or video before the project's completion.